Martin bergsjo



(No Model.)

M. BERGSJO. EYEGLASSES.

No. 559,320. I Patented A r; 28, 1896.

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3 mm Mm 0L AN DREW B GRAHAM. PHDTOUIHQWASHINGTON DC UNITED STATES PATENTOFFICE.

MARTIN BERGSJG, OF CHICAGO, ILLINOIS, ASSIGNOR TO HERMAN I-I. KOERTS.

EYEGLASSES.

SPECIFICATION forming part of Letters Patent N 0. 559,320, dated April28, 1896. Application filed June 5, 1894:. Serial No. 513,507. (Nomodel.)

To all whom it may concern.-

Be it known that I, MARTIN BERGSJG, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Eyeglasses, which arefully set forth in the following specification, reference being had tothe accompanying drawings, forming a part hereof, and in which Figure 1shows my said improved eyeglasses in plan view, or as seen on theirupper edge held between the thumb and forefinger as they are handled.Fig. 2 shows said glasses as seen from the front. Fig. 3 shows in endView one nose-piece, its arm, and two of the parts which carry andactuate it one way. Fig. 4 shows a transverse section on the plane anyof Fig. 1.

Like letters refer to like parts.

The object of my invention is to make a frame for eyeglasses in whichthe adjustment of the optical axes of the lenses is permanent and at thesame time capable of adjustment to the eyes and free from the guards ornosepieces, the latter being operated by springs and the hand, allsubstantially as follows, namely:

The lens-frames or eyes 2' are provided with posts on the inner ends oftheir longitudinal axes, which by screws j are attached to arms I) onthe ends of the bar a, thus forming a rigid connection between saidlenses, whereof the distance between their focal axes may be increasedor diminished by bending said arms I) correspondingly. Said arms havelugs 76, projecting forward from the plane of the lenses, which haveholes f, in which reciprocate the rods or pushing-rods f and g, andwhose inner ends pass beyond the central plane 10 0c and are fastened inlugs, that of the bar f in the lug Z and that of the bar gin the lug Z,the bar f sliding freely in a closefitting hole through the lug Z andthe bar g in the same manner through a hole in the lug Z. Upon said rod0. are coiled expandingsprings e, whose fixed ends rest on the arms I)and whose free ends actuate the arms 0 a, carrying the nose-pieces orguards at d, and are operated between the thumb and forefinger on thenibs h on the ends of the fingerpieces or rods f g, thus accomplishingthis object by making the mechanism which holds the lenses independentin their axial adjustment from thatwhich operates the guards. A spur mon one of the rods f holds the guards against closer approach. I

l/Vhat I claim is- 1. The combination with eyeglass-eyes fixedlyconnected by a straight bar, springpressed nose-pieces sliding on saidbar, a finger-piece to each nose-piece extended and supported beyondtheopposite nose-piece, substantially as specified.

2. The combination with eyeglass-eyes, of a rigid straightconnecting-bar, nose-pieces sliding on said bar, springs on said bar toac tuate said nose-pieces, finger-pieces connected to the inside of saidnose-pieces extended and supported beyond the opposite nose-piece, eachparallel to the connecting-bar, substantially as specified.

3. In fixed eyeglass-lenses the straight bar and arms at its ends,nose-pieces mounted on said bar with lugged shanks, coiled springs onsaid straight bar, a finger-piece to each nose-piece passing beyond theopposite nosepiece and through bearings beyond said opposite nose-piecesaid finger-pieces straight and parallel to each other and to the barconnecting the lenses, and nibs at the ends of the finger-pieces,substantially as specified.

4. The combination with a lens-frames fixed parts a, b, i, of parts d,d, e, f, g, whereof e, f, g, are parallel and parallel moving,longitudinally, actuating d d oppositely on the bar a substantially asspecified.

5. The combination in eyeglasses of three parallel straight bars whereofone holds the eyes fixedly, and springs and nose-pieces thereon, and theremaining two bars, each, attached to theinside of a nose-piece toactuate it oppositely to its spring on said bar, substantially asspecified.

MARTIN BERGSJ'O.

Witnesses:

WM. ZIMMERMAN, H. H. KoERTs.

